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Finding the Fourth Proportional to 363,066.87, 544,507.82 and 257,442.98

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Solution

The fourth proportional to 363,066.87, 544,507.82 and 257,442.98 is: 386,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,066.87 : 544,507.82 = 257,442.98 : x
  2. Step 2: Convert to fraction form
    363,066.87/544,507.82 = 257,442.98/x
  3. Step 3: Cross multiply
    363,066.87x = 544,507.82 × 257,442.98
  4. Step 4: Simplify right side
    363,066.87x = 140,179,711,804.35
  5. Step 5: Solve for x
    x = 140,179,711,804.35/363,066.87
  6. Step 6: Final answer
    x = 386,098.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.